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Op Amp for ph meter

MJerj.1
Associate

I'm looking for Op Amp for building a ph meter i looked at the st op amps alot of options there, cant seem to find an op amp recommended for this type of circuit 

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1 REPLY 1
Uwe Bonnes
Principal III

If you need ultra low bias and low offset,  LMC7101 may be a good choice.